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THE CAUSE AND THE CAUSER. 31 can and do use it for others. The flower-dust receptacles are so far off the sticky surface which requires dusting, that the flower cannot dust itself as other flowers do. Hence the seed would come to nothing and. the race die out but for-what do you think ?" Sir Helix. I am not fairly in my shell and do not choose to think." Dr. Earwig. Well then-but for these extraordinary accidents of insects carrying away the flower-dust. Away they go afterwards into other flowers-the foreign body knob foremost, you understand, so that it strikes the sticky surface which happens to lie just in its way at the entrance of the nectary. Whereupon off come one or two flower-dust packets and the deed is done! The sticky surface is scattered over with dust, the seeds vivify, the race goes on !" Sir Helix. "And the insect gets no credit for what it has done ? Dr. Earwig. It has earned none. It was helping itself to food in both cases-nothing more." Sir Helix. "The flower then ?"